Hey all. I am fairly new to Simscale.
As I understand, it is possible to have a cuboidal enclosure in simulations. Is it possible for making a circular enclosure?
Hey there 
It is not possible to create a shape other than Cartesian box , but what you can do instead, is model the Enclosure as you want it in your CAD software, and then upload it to SimScale. Then you can extract the flow volume with a closed inner region from inside this custom boundary, does this make sense?
Best regards,
Fillia